Absorption-free beam generated by a phase-engineered optical element
Optics Letters, Vol. 34, Issue 10, pp. 1528-1530 (2009)
http://dx.doi.org/10.1364/OL.34.001528
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Abstract
Phase engineering of an axicon’s phase transmission function results in an exponential growth of an on-axis intensity of a diffraction-free or Bessel beam. We show that in a lossy medium obeying Beer’s absorption law/exponential intensity decrease, a beam focused by such an optical element propagates with nearly constant intensity while preserving the quasi-diffraction-free property. Absorption-free beams may find applications in illumination, atmospheric propagation, biomedicine/light diffusion in live tissues, and other situations where light absorption hinders beam propagation.
© 2009 Optical Society of America
OCIS Codes
(010.3310) Atmospheric and oceanic optics : Laser beam transmission
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(220.0220) Optical design and fabrication : Optical design and fabrication
(230.0230) Optical devices : Optical devices
(260.0260) Physical optics : Physical optics
(070.3185) Fourier optics and signal processing : Invariant optical fields
ToC Category:
Physical Optics
History
Original Manuscript: March 9, 2009
Manuscript Accepted: April 3, 2009
Published: May 8, 2009
Virtual Issues
Vol. 4, Iss. 7 Virtual Journal for Biomedical Optics
Citation
Ilya Golub and Theodore Mirtchev, "Absorption-free beam generated by a phase-engineered optical element," Opt. Lett. 34, 1528-1530 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-10-1528
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